Numéro
J. Phys. Colloques
Volume 48, Numéro C9, Décembre 1987
X-Ray and Inner-Shell Processes
Vol. 1
Page(s) C9-527 - C9-530
DOI https://doi.org/10.1051/jphyscol:1987986
X-Ray and Inner-Shell Processes
Vol. 1

J. Phys. Colloques 48 (1987) C9-527-C9-530

DOI: 10.1051/jphyscol:1987986

PROBLEMS WITH IPA LATTER TAIL POTENTIALS IN NEUTRAL AND IONIC PHOTOEFFECT CALCULATIONS

Y. KUANG1, R.H. PRATT1, Y.-J. WU1, J. STEIN2, I.B. GOLDBERG2 and A. RON2

1  Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, U.S.A.
2  Racah Institute of Physics, Hebrew University of Jerusalem, IL-91000 Jerusalem, Israel


Abstract
It has been asserted that oscillations and other structures observed in photoionization cross sections are due to the use of Coulombic Latter tails and to independent-particle-approximation (IPA) calculations. We show that suitable IPA calculations do not have these features, as for example if a vacancy potential is used.